An arc lamp requires a direct current of 10 A at 80 V to function

PHYSICS · Single correct · A Level · Physics · Fields and their consequences · Fields and their consequences

Problem

An arc lamp requires a direct current of 10 A at 80 V to function. If it is connected to a 220 V (rms), 50 Hz AC supply, the series inductor needed for it to work is close to : (1) 0.044 H (2) 0.065 H (3) 80 H (4) 0.08 H

Related theory

Browse the problem library